QTR-Quadtone RIP

Here's what I did:
Printed the Calibration page(the one with all the colors).
Measured the black ink and determined max ink to be 73%.
Printed Cal page again with the ink calibration slider at 73.
Determined 100% LK was 25% of Blk and 100% LLK was 31% of LK.
Called up an existing curve to modify.
I modified the existing numbers using what I got from the above, changing the Default ink limit to 73, Blk to 100(density)/70(limit), LK to 25/70 and LLK to 31/70. I kept the limits the same from the curve I modified. I then printed out another wedge and determined that the the LLK was off(the 31) and went back to what the original LLK was(7.6/70). I kept modifying the curve and printed a wedge until I saw an even distribution of tones on the wedge. I did not change the linearization at any point until I was done. 
So correct me if I'm wrong. Are you saying that when I called up the existing curve to modify, I should have removed the linearization first, THEN added the numbers I got from the ink calibration into the Curve Creator box, AND THEN print that(the 21 step wedge)out? Do I then measure this new strip and put those numbers in the linearization boxes? If the strip doesn't look good, what do I modify next? 
Keith
 

 

--- In QuadtoneRIP@yahoogroups.com, Mike King <drmrking@...> wrote:
>
> Keith just to be clear, you have to remove the linearization first then generate new curve, print your wedge then put the new linearzation in, then generate your final curve set. Is that what you did? mike
> 
> 
> 
> On 14 Sep 2010, at 16:07, "Keith" <kjrslr@...> wrote:
> 
> > Yes I did remove the 51 and replaced them with the 21. When I printed out the step wedge with the new linearizion numbers, the wedge, instead of a nice gradation, was now mostly black from about 100% to
> > 70%, then the gradation was slight for the remainder. At that point I thought I had done something wrong and replaced the 21 with the original 51.
> > To surmise: I have printed out a step wedge with a nice gradation, took measurements(Spyder3Print), placed the numbers in the linearizion box(replacing 51 with 21) and printed out a wedge with a mostly dark gradations. What did I do wrong? What do I do next? 
> > 
> > --- In QuadtoneRIP@yahoogroups.com, Howard Shaw <glassman@> wrote:
> > >
> > > You haven't mentioned linearisation - did you remove the linearisation 
> > > figures from the existing curve and replace them with your own?
> > > 
> > > regards
> > > Howard
> > > 
> > > On 14/09/2010 04:52, Keith wrote:
> > > > Backgound:Windows Vista, calibrated monitor, Epson 4800, modified ConeColor inkset(LK and LLK are Cone Selenium shades 4& 5). I printed out the calibration page. Determined ink limit,etc. Selected an exisiting curve to modify to determine tone,etc. In curve creation, I modified density and limits and printed out 21 step wedge after step wedge to get a nice, evenly graduated step wedge. After many iterations,I thought I had made a good neutral curve. I pulled up an image in PS and made sure it was a greyscale tiff, gamma 2.2 image. I then opened it in QTR, selected my curve and hit print. The tone was neutral but the print was light. What did I do wrong? http://docs.yahoo.com/info/terms/
> > > >
> > > >
> > > -- 
> > > 
> > > Howard Shaw
> > > glassman@
> > > www.howardshaw.org
> > >
> > 
> > 
> 
> 
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